This work investigated the anaerobic degradation of the model azo dye Remazol Yellow Gold RNL in an upflow anaerobic sludge blanket reactor (UASB) and two submerged anaerobic membrane (SAMBR) bioreactors, one of which (SAMBR-1) was operated with powdered activated carbon (PAC) in its interior. The reactors were operated at 35 °C with a hydraulic retention time of 24 h in three operational phase...

This review presents a comprehensive summary on applications of anaerobic membrane bioreactor (AnMBR) technology for industrial wastewaters in view of different aspects including treatability and filterability. AnMBRs present an attractive option for the treatment of industrial wastewaters at extreme conditions, such as high salinity, high temperature, high suspended solids concentrations, and ...

B.D. Morreale, M.V. Ciocco, K.S. Rothenberger, B.H. Howard, A.V. Cugini, R.M. Enick Considerable interest in hydrogen separation and membrane reactors has motivated the research and development of hydrogen permeable materials. One particular interest in membrane technology is the application to processes that can benefit from operation at elevated temperatures (up to 1173 K) and pressures (up t...

This study proposes the steam reforming of a synthetic biogas stream containing 200 ppm H2S, carried out in non-commercial supported Pd–Au/Al2O3 membrane reactor (7–8 ?m selective layer thickness) at 823 K and 150 kPa over Rh(1%)/MgAl2O4/Al2O3 catalyst. system is able to recover almost 80% total hydrogen produced during reaction shows good resistance H2S contamination, as confirmed by stable me...

This paper presents the results of an investigation into the treatment of Tehran Refinery effluents in UASB reactors. Four pilot-scale UASB reactors were built with similar dimensions, each with a volume of 45.78 1, and operated in parallel at 37 °C. The sludge seed was prepared from the waste activated sludge of the wastewater treatment unit of the refinery. The organic loading rates were grad...

Extremophiles thrive in ice, boiling water, acid, the water core of nuclear reactors, salt crystals, and toxic waste and in a range of other extreme habitats that were previously thought to be inhospitable for life. Extremophiles include representatives of all three domains (Bacteria, Archaea, and Eucarya); however, the majority are microorganisms, and a high proportion of these are Archaea. Kn...

Results have been reported previously of a model describing the performance photoelectrochemical reactors, which utilize semiconductor | liquid junctions. This was developed and verified using Sn IV -doped ?-Fe 2 O 3 as photoanodes. Hematite films were fully characterized to obtain parameter inputs predicting photocurrent densities. Thus, measured photocurrents described validated by in terms m...